Stable oxygen isotope ratio are analyzed for selected bottle seawater samples. Sampled bottels are stored in refregirators until processing and processings are done by Finnigan Mat at Institute of Low Tempearture Science, Hokkaido University. Data are provided as delta oxygen-18 values, referenced to Vienna Standard Mean Ocean Water (V-SMOW) and are normalized on the Standard Mean Ocean Water-Standard light Antarctic Precipitation (SMOW-SLAP) scale.
There are samples still under processing （November 25, 2014）.
Users are requested to report their usage for shigeru_at_lowtem.hokudai.ac.jp. Acknowledgement in the products is preferred, such as "Oxygen isotope data are provided under the Joint Research Program of the Institute of Low Temperature Science, Hokkaido University."
Station number, Cast number, Bottle number, month, day, year, DeltaO18, Difference between duplication, latitude, longitude